Old Fossil Teeth of Early Mammals Shocks Archaeologists, 'A Jaw-Dropping Moment' Human ancestors had an adventurous ...

The new research is the first to look back at early mammals in full color. Using advanced fossil imaging methods and a ...

The charity People’s Trust for Endangered Species (PTES) is asking nature lovers to help them track changes in populations.

Dolphins live and hunt in large social groups called pods, and they communicate with each other using high-pitched clicks and ...

Our earliest mammalian ancestors avoided the dominant dinosaurs by only coming out at night and having uniformly dark, ...

The sea mammals may actually be able to sense the amount of oxygen in their blood—something we humans can't do.

The Tulsa Zoo has a colony of nearly 30 naked mole rats. Despite their name, these mammals are more closely related to ...

An international team of paleontologists, geoscientists and biologists has found via analysis of melanosome patterns in ...

Ancient mammals that lived in the time of dinosaurs were mostly the same dark-brown colour, according to a new study providing clues about how those mammals evolved as they faced giant predators.

As seals dive more frequently—and for longer—than humans do, the range of carbon dioxide in their bodies varies more widely.

The marine mammals swarmed around the recovery team and capsule, welcoming home the astronauts shortly after they splashed ...

Marine biologists say sea life off the SoCal coast is in danger of being wiped out, and they say more frequent toxic algae ...